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Aminet AMIGA CDROM (1994)(Walnut Creek)[Feb 1994][W.O. 44790-1].iso
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xprz_modem_2_52.lha
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XprZmodem.h
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C/C++ Source or Header
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1991-11-20
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9KB
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199 lines
/*
* xprzmodem.h: Definitions for xprzmodem.library;
* Version 2.0, 28 October 1989, by Rick Huebner.
* Released to the Public Domain; do as you like with this code.
*/
/* #define DEBUGLOG 1 */
/* Return codes */
#define OK 0
#define ERROR (-1)
#define TIMEOUT (-2)
#define RCDO (-3)
/* Relevant control characters */
#define CR ('M' & 0x1F) /* ^M */
#define DLE ('P' & 0x1F) /* ^P */
#define XON ('Q' & 0x1F) /* ^Q */
#define XOFF ('S' & 0x1F) /* ^S */
#define CAN ('X' & 0x1F) /* ^X */
#define CPMEOF ('Z' & 0x1F) /* ^Z */
/* Misc. program constants */
#define LZMANAG 0 /* Default ZMODEM file management mode */
#define LZTRANS 0 /* Default ZMODEM file transport mode */
#define PATHLEN 256 /* What's the max legal path size? */
#define CONFIGLEN 32 /* Max length of transfer options string */
#define KSIZE 1024 /* Max allowable packet size */
#define MINBLOCK 64 /* Min allowable packet size */
#define MAXGOODNEEDED 8192 /* Max # good bytes req'd to bump packet size */
/* Provision for future 7-bit ZMODEM; for now, there's no difference */
#define sendline xsendline
/*
* Replacement for global variables normally used, in order to make code
* fully reentrant; each invocation allocs their own Vars, and passes the
* struct pointer down through the entire program so they're always available.
* Pointer to this struct is usually able to be a register variable, so access
* is no worse than any stack variable (all register-relative). Kinda
* kludgey, but the original ZModem code design depended on lots of globals,
* and I didn't want to redesign the whole damn thing. Besides, it's more
* efficient than constantly pushing & popping args all over the place.
*/
struct Vars
{
struct XPR_IO io; /* Copy of XProto IO struct passed by term prog. */
struct XPR_UPDATE __aligned xpru; /* Scratchpad xpr_update() control struct */
struct timeval __aligned Starttime; /* Time transfer started */
UBYTE __aligned Rxhdr [4]; /* Received header */
UBYTE Txhdr [4]; /* Transmitted header */
UBYTE Msgbuf [128]; /* Scratchpad buffer for printing messages */
UBYTE Filename [PATHLEN]; /* Name of the file being up/downloaded */
UBYTE Pktbuf [KSIZE]; /* File data packet buffer */
UBYTE Modembuf [256]; /* Input buffer for data from modem */
UBYTE Outbuf [KSIZE * 2 + 256]; /* Output buffer for data to modem */
UBYTE *Modemchar; /* Next char to get from Modembuf */
UBYTE *Filebuf; /* File I/O buffer address */
UBYTE *Filebufptr; /* Current position within Filebuf */
long File; /* Handle of file being transferred */
long Oldstatus; /* Original terminal program's modem settings */
long Baud; /* BPS setting of modem */
long Strtpos; /* Starting byte position of transfer */
long Fsize; /* Size of file being transferred */
long Rxbytes; /* Number of bytes received so far */
long Filebufpos; /* File offset of data in Filebuf */
long Filebufmax; /* Size of Filebuf */
long Filebuflen; /* Number of bytes currently stored in Filebuf */
long Filebufcnt; /* Number of bytes remaining/written in Filebuf */
long Rxpos; /* Received file position */
long Txpos; /* Transmitted file position */
short Filcnt; /* Number of files opened for transmission */
short Errcnt; /* Number of files unreadable */
short Noroom; /* Flags 'insufficient disk space' errors */
short Rxbuflen; /* Largest frame they're willing to xfer */
short Tframlen; /* Largest frame we're willing to xfer */
short Rxtimeout; /* Tenths of seconds to wait for something */
short Tryzhdrtype; /* Header type to send corresp to Last rx close */
short Modemcount; /* Number of bytes available in Modembuf */
short Outbuflen; /* Number of bytes currently stored in Outbuf */
short Rxframeind; /* ZBIN or ZHEX; type of frame received */
short Txfcs32; /* TRUE means send binary frame with 32 bit FCS */
short Rxflags; /* Temp register */
short Wantfcs32; /* want to send 32 bit FCS */
short Crc32t; /* Display flag indicates 32 bit CRC being sent */
short Crc32; /* Display flag indicates 32 bit CRC being recd */
short Rxtype; /* Type of header received */
short Rxcount; /* Count of data bytes received */
short Znulls; /* Number of nulls to send at begin of ZDATA hdr */
short ErrorLimit; /* How many sequential errors before abort */
char Rxbinary; /* Force binary mode download? */
char Rxascii; /* Force text mode download? */
char Thisbinary; /* Receive this file in binary mode? */
char Lzconv; /* Suggested binary/text mode for uploads */
char Eofseen; /* Text-mode EOF marker (^Z) rec'd on download? */
UBYTE Zconv; /* ZMODEM file conversion request */
UBYTE Zmanag; /* ZMODEM file management request */
UBYTE Ztrans; /* ZMODEM file transport request */
UBYTE Lastsent; /* Last text char written by putsec() */
UBYTE Lastzsent; /* Last char sent by zsendline() */
UBYTE Fileflush; /* Flush file I/O buffer before closing? */
UBYTE Attn[ZATTNLEN + 1]; /* Attention string rx sends to tx on err */
};
/*
* Option settings and other variables needed outside of XProtocolSend/Receive;
* separated from rest of Vars so that huge Vars struct doesn't have to be
* allocated except during transfers. Pointer to this struct kept in xpr_data.
*/
struct SetupVars
{
UBYTE *matchptr, *bufpos;
short buflen;
UBYTE option_t[2], option_o[2], option_b[8], option_f[8], option_e[8],
option_s[4];
UBYTE option_r[4], option_a[4], option_d[4], option_k[4], option_p[256];
};
/* Function prototypes */
long __saveds __asm XProtocolSend(register __a0 struct XPR_IO *xio);
short getzrxinit(struct Vars *v);
void sendbatch(struct Vars *v);
short sendone(struct Vars *v);
short sendname(struct Vars *v);
short zsendfile(struct Vars *v, short blen);
short zsendfdata(struct Vars *v);
short getinsync(struct Vars *v);
void saybibi(struct Vars *v);
long __saveds __asm XProtocolReceive(register __a0 struct XPR_IO *xio);
short rcvbatch(struct Vars *v);
short tryz(struct Vars *v);
short rzfiles(struct Vars *v);
short rzfile(struct Vars *v);
short procheader(struct Vars *v);
short putsec(struct Vars *v);
void ackbibi(struct Vars *v);
long __saveds __asm XProtocolSetup(register __a0 struct XPR_IO *xio);
long __saveds __asm XProtocolCleanup(register __a0 struct XPR_IO *xio);
long __saveds __asm XProtocolHostMon(
register __a0 struct XPR_IO *xio,
register __a1 char *serbuff,
register __d0 long actual,
register __d1 long maxsize);
long __saveds __asm XProtocolUserMon(
register __a0 struct XPR_IO *xio,
register __a1 char *serbuff,
register __d0 long actual,
register __d1 long maxsize);
struct Vars *setup(struct XPR_IO *io);
UBYTE *find_option(UBYTE *buf, UBYTE option);
void set_textmode(struct Vars *v);
void canit(struct Vars *v);
void zmputs(struct Vars *v, UBYTE *s);
void xsendline(struct Vars *v, UBYTE c);
void sendbuf(struct Vars *v);
short readock(struct Vars *v, short tenths);
char char_avail(struct Vars *v);
void update_rate(struct Vars *v);
long bfopen(struct Vars *v, UBYTE *mode);
void bfclose(struct Vars *v);
void bfseek(struct Vars *v, long pos);
long bfread(struct Vars *v, UBYTE *buf, long length);
long bfwrite(struct Vars *v, UBYTE *buf, long length);
void ioerr(struct XPR_IO *io, char *msg);
void upderr(struct Vars *v, char *msg);
void updmsg(struct Vars *v, char *msg);
long getfree(void);
char exist(struct Vars *v);
int mysprintf(char *buffer, char *ctl, ...);
#ifdef DEBUGLOG
void dlog(struct Vars *v, UBYTE *s);
#endif
void zsbhdr(struct Vars *v, USHORT type);
void zshhdr(struct Vars *v, USHORT type);
void zsdata(struct Vars *v, short length, USHORT frameend);
short zrdata(struct Vars *v, UBYTE *buf, short length);
short zrdat32(struct Vars *v, UBYTE *buf, short length);
short zgethdr(struct Vars *v);
short zrbhdr(struct Vars *v);
short zrbhdr32(struct Vars *v);
short zrhhdr(struct Vars *v);
void zputhex(struct Vars *v, UBYTE c);
void zsendline(struct Vars *v, UBYTE c);
short zgethex(struct Vars *v);
short zdlread(struct Vars *v);
short noxrd7(struct Vars *v);
void stohdr(struct Vars *v, long pos);
long rclhdr(struct Vars *v);
extern ULONG UnixTimeOffset;
ULONG getsystime(struct timeval *tv);
/* End of XprZmodem.h source */